so in diagnosing a rough idle, i logged misfires on my commute home last night, log inside...
Thread Starter
AudiWorld Super User
Joined: Apr 2000
Posts: 7,305
Likes: 2
so in diagnosing a rough idle, i logged misfires on my commute home last night, log inside...
I cut out only the data that had a misfire above 0. The range says 0-5, so I guess I'm ok on misfires, but I thought I'd ask the log gods to check it out.
Are these misfire counts normal/ok or should I dig deeper?
The commute home is boring as all hell, a lot of idleing around in traffic, which is boring log wise, but since it's a rough idle, made sense to use it as a log sample.
<a href="http://www.boom.net/~ryans4/random/Misfires_04192005_LOG.htm">http://www.boom.net/~ryans4/random/Misfires_04192005_LOG.htm</a>
The car has 78k miles, stock ecu, it *should* have stock NGK plugs, runs 91 octane fuel, stock downpipes with old tired cat's and a cat-back exhaust.
Thanks all thoughts are welcome.
Are these misfire counts normal/ok or should I dig deeper?
The commute home is boring as all hell, a lot of idleing around in traffic, which is boring log wise, but since it's a rough idle, made sense to use it as a log sample.
<a href="http://www.boom.net/~ryans4/random/Misfires_04192005_LOG.htm">http://www.boom.net/~ryans4/random/Misfires_04192005_LOG.htm</a>
The car has 78k miles, stock ecu, it *should* have stock NGK plugs, runs 91 octane fuel, stock downpipes with old tired cat's and a cat-back exhaust.
Thanks all thoughts are welcome.
Thread Starter
AudiWorld Super User
Joined: Apr 2000
Posts: 7,305
Likes: 2
they *should* have been changed to stock NGK at 65k...
...i had a TON of service done at 65k, and I asked for new stock plugs, but I haven't pulled them to see if: a) they were replaced and b) they are stock NGK's.
Should the car not misfire at all? Or is the range of 0-5 basically mean "all is well"?
Maybe this weekend I'll pull a couple plugs and check them out.
Thanks...
Should the car not misfire at all? Or is the range of 0-5 basically mean "all is well"?
Maybe this weekend I'll pull a couple plugs and check them out.
Thanks...
Trending Topics
AudiWorld Stories
Bringing Audi to Life for Audi Fans
10 Strangest Audi Designs That Actually Made Production
Joe Kucinski
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!
Michael S. Palmer
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!
Verdad Gallardo
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
Every Audi V10 Car Ranked!
Joe Kucinski
AudiWorld Super User
Joined: Dec 2002
Posts: 2,718
Likes: 0
How about When you r @ WOT, any miss-fires? (m)
I have a few questions.
how rough is the ideal? (is the car shaking or u can barely feel it?)
When u get off the free way is it ok for a while?
stopping for a period of time (ie. stop light) dose it get rough then?
I think i have the same problem w/ miss fire. the dealer said its "with in spec".... go figure.
Edy
how rough is the ideal? (is the car shaking or u can barely feel it?)
When u get off the free way is it ok for a while?
stopping for a period of time (ie. stop light) dose it get rough then?
I think i have the same problem w/ miss fire. the dealer said its "with in spec".... go figure.
Edy
Thread Starter
AudiWorld Super User
Joined: Apr 2000
Posts: 7,305
Likes: 2
not much 100% throttle on my commute, but...
...all those instances above 50% throttle a handful in the 90's % are all ZERO misfires on teh counters.
The idel is not always rough, so that doesn't help. i.e., this morning it was buttery smooth. Sometimes though it'll start to shimmy the seat a bit (driver seat) so as i'm sitting still at a light, i start to feel my body shake a bit. lasts for a couple seconds then usualy clears up and repeats till I'm on my way.
I haven't linked it yet to a condition (like just off freeway, or so on) so I can't say. I'll start to pay more attention.
The idel is not always rough, so that doesn't help. i.e., this morning it was buttery smooth. Sometimes though it'll start to shimmy the seat a bit (driver seat) so as i'm sitting still at a light, i start to feel my body shake a bit. lasts for a couple seconds then usualy clears up and repeats till I'm on my way.
I haven't linked it yet to a condition (like just off freeway, or so on) so I can't say. I'll start to pay more attention.